What do you do about a neighbor's noisy dog?

This is a scenario in close living quarters, like apartments where you can hear everything through the walls.

Do you confront them?

Do you call the police? Animal control?

Say the dog has been barking incessantly for the past several months and refuses to be silenced. What’s one to do in order to keep their sanity?

I’m just asking in general, not about a specific situation.